Oahu, Kauai and Maui are outlined by nearly 170 miles of sandy beaches, but about 70 percent of them are slowly shrinking from erosion, storms and a rising sea, according to a USGS report. Hawaii has the technology and expertise to rebuild those beaches, but what we usually lack are two things: the right sand and the money to pay for it all.
Hawaii has been looking for sand since the 1960s, says Scott Sullivan, VP for Sea Engineering Inc., which has worked on beach nourishment projects in Waikiki, Poipu and Iroquois Point. While Hawaii’s beach sand is not unique, he says, it’s also not the most common. Our sand is predominantly made from ground-up shells, coral and algae – the scientific name is calcium carbonate.
To read more, go to: http://www.hawaiibusiness.com/bring-back-our-beach/